Claire E. Harnett
Fracture and damage localization in volcanic edifice rocks from El Hierro, Stromboli and Tenerife
Harnett, Claire E.; Benson, Philip M.; Rowley, Pete; Fazio, Marco
Authors
Philip M. Benson
Pete Rowley
Marco Fazio
Abstract
We present elastic wave velocity and strength data from a suite of three volcanic rocks taken from the volcanic edifices of El Hierro and Tenerife (Canary Islands, Spain), and Stromboli (Aeolian Islands, Italy). These rocks span a range of porosity and are taken from volcanoes that suffer from edifice instability. We measure elastic wave velocities at known incident angles to the generated through-going fault as a function of imposed strain, and examine the effect of the damage zone on P-wave velocity. Such data are important as field measurements of elastic wave tomography are key tools for understanding volcanic regions, yet hidden fractures are likely to have a significant effect on elastic wave velocity. We then use elastic wave velocity evolution to calculate concomitant crack density evolution which ranges from 0 to 0.17: highest values were correlated to the damage zone in rocks with the highest initial porosity.
Citation
Harnett, C. E., Benson, P. M., Rowley, P., & Fazio, M. (2018). Fracture and damage localization in volcanic edifice rocks from El Hierro, Stromboli and Tenerife. Scientific reports, 8(1), Article 1942. https://doi.org/10.1038/s41598-018-20442-w
Acceptance Date | Jan 10, 2018 |
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Online Publication Date | Jan 31, 2018 |
Publication Date | Dec 1, 2018 |
Deposit Date | Jan 31, 2018 |
Publicly Available Date | Jan 31, 2018 |
Journal | Scientific Reports |
Print ISSN | 2045-2322 |
Publisher | Nature Publishing Group |
Peer Reviewed | Peer Reviewed |
Volume | 8 |
Issue | 1 |
Article Number | 1942 |
DOI | https://doi.org/10.1038/s41598-018-20442-w |
Keywords | Geophysics; Natural hazards; Seismology; Volcanology |
Public URL | https://hull-repository.worktribe.com/output/565127 |
Publisher URL | https://www.nature.com/articles/s41598-018-20442-w |
Contract Date | Jan 31, 2018 |
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© The Author(s) 2018
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